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Structural <br /> Engineering & Design Inc. <br /> 1815 Wriaht Ave La Verne CA 91750 Tel: 909,596,1351 Fax: 909 596 7186 <br /> By: Bob S Project: Fast Signs Project#:24-0917-16 <br /> Slab on Grade Configuration:TYPE A SELECTIVE RACK <br /> 1 P slab ; <br /> i <br /> a ------'--; Concrete <br /> 1. Fb <br /> 4,000 psi <br /> e tslab=t= 6,0 in <br /> slab 1 t . . . . <br /> -�_ Cross teff= 6,0 in <br /> ' Aisle•;•;•; ----c ---- phi=0= 0.6 <br /> x c Soil <br /> y fsoil= 750 psf <br /> L -�I Down Aisle <br /> . . . . . . . . ' ' Movt= 460,404 in-lb <br /> SLAB ELEVATION Frame depth= 48.0 in <br /> BaseDlate Plan View Sds= 1.000 <br /> Base Plate 0,2*Sds= 0,200 <br /> Effec,Baseplate wldth=B= 8,00 in width=a= 3.00 in X= 0,600 <br /> Effec•Baseplate Depth=D= 8.00 in depth=b= 3.00 In p=B/D= 1.000 <br /> midway dist face of column to edge of plate=c= 5.50 in F'CA 0.5= 63.20 psi <br /> Column Loads midway dist face of column to edge of plate=e= 5.50 in <br /> DEAD LOAD=D= 75 lb per column Load Case 1) (1,2+0.2Sds)D + (1.2+0.2Sds)*B*P+ rho*E RMI SEC 2.2 EQTN 5 <br /> unfactoredASDload = 1.4* 75 lb+ 1.4*0.7 * 8500 lb + 1 *9591 lb <br /> PRODUCT LOAD=P= 8,500 lb per column = 18,026 lb <br /> unfactoredASD load Load Case 2) (0.9-0.2Sds)D+ (0.9-0,2Sds)*B*Papp + rho*E RMI SEC 2.2 EQTN 7 <br /> Papp= 5,695 lb per column = 0.7* 75 lb+ 0.7 * 0.7 * 5695 lb+ 1 * 9591 lb <br /> P-seismic=E= (Movt/Frame depth) = 12,434 lb <br /> = 9,591 lb per column Load Case 3) 1.2*D + 1.4*P RMI SEC 2.2 EQTN 1.,2 <br /> unfactoredLlm/t State load = 1.2*75 lb + 1.4*8500 lb <br /> B= 0.7000 = 11,990 lb <br /> rho= i.0000 Load Case 4) 1.2*D + 1,0*13+ 1.0E ACI318.14 sec 5.3.1 <br /> Sds= 1.0000 = 18,181 Ib Egtn 5.3.1e <br /> 1.2 + 0.2*Sds= 1.4000 Effective Column Load=Pu= 18,181 lb per column <br /> 0. 9-0.20Sds= 0.7000 <br /> Puncture <br /> Apunct= [(c+t)+(e+t)]*2*t <br /> = 276.0 inA2 <br /> Fpunctl= [(4/3+8/(3*p)] *7,,*(F'c^0.5) fv/Fv= Pu/(Apunct*Fpunct) <br /> = 151.7 psi = 0.653 < 1 OK <br /> Fpunctl= 2.66*X*(F'c^0.5) <br /> = 100.9 psi <br /> Fpunct eff= 100.9 psi <br /> Slab Bending <br /> Pse=DL+PL+E= 18,181 lb <br /> Asoil= (Pse*144)/(fsoil) L= (Asoil)^0.5 y= (c*e)^0.5 + 2*t <br /> = 3,491 inA2 = 59.08 in = 17.5 in <br /> x= (L-y)/2 M= w*x^2/2 S-slab= 1*teff^2/6 <br /> = 20.8In = (fsoil*x^2)/(144*2) = 6.0In^3 <br /> Fb= 5*(ph1)*(fc)^0.5 = 1,125.8 in-lb fb/Fb= M/(S-slab*Fb) <br /> = 189.74 psi = 0.989 < 1,OK <br /> type a select-fast 51gn5.xi5 Page 1.5 of ( 911 812024 <br />